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Philipp Zabel73772262009-03-19 09:34:46 +01001/*
2 * SoC audio for HTC Magician
3 *
4 * Copyright (c) 2006 Philipp Zabel <philipp.zabel@gmail.com>
5 *
6 * based on spitz.c,
7 * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
8 * Richard Purdie <richard@openedhand.com>
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 */
16
17#include <linux/module.h>
18#include <linux/timer.h>
19#include <linux/interrupt.h>
20#include <linux/platform_device.h>
21#include <linux/delay.h>
22#include <linux/gpio.h>
Philipp Zabel1abd9182009-06-15 22:18:23 +020023#include <linux/i2c.h>
Philipp Zabel73772262009-03-19 09:34:46 +010024
25#include <sound/core.h>
26#include <sound/pcm.h>
27#include <sound/pcm_params.h>
28#include <sound/soc.h>
29#include <sound/soc-dapm.h>
Philipp Zabel1abd9182009-06-15 22:18:23 +020030#include <sound/uda1380.h>
Philipp Zabel73772262009-03-19 09:34:46 +010031
Philipp Zabel73772262009-03-19 09:34:46 +010032#include <mach/magician.h>
33#include <asm/mach-types.h>
34#include "../codecs/uda1380.h"
Philipp Zabel73772262009-03-19 09:34:46 +010035#include "pxa2xx-i2s.h"
36#include "pxa-ssp.h"
37
38#define MAGICIAN_MIC 0
39#define MAGICIAN_MIC_EXT 1
40
41static int magician_hp_switch;
42static int magician_spk_switch = 1;
43static int magician_in_sel = MAGICIAN_MIC;
44
45static void magician_ext_control(struct snd_soc_codec *codec)
46{
47 if (magician_spk_switch)
48 snd_soc_dapm_enable_pin(codec, "Speaker");
49 else
50 snd_soc_dapm_disable_pin(codec, "Speaker");
51 if (magician_hp_switch)
52 snd_soc_dapm_enable_pin(codec, "Headphone Jack");
53 else
54 snd_soc_dapm_disable_pin(codec, "Headphone Jack");
55
56 switch (magician_in_sel) {
57 case MAGICIAN_MIC:
58 snd_soc_dapm_disable_pin(codec, "Headset Mic");
59 snd_soc_dapm_enable_pin(codec, "Call Mic");
60 break;
61 case MAGICIAN_MIC_EXT:
62 snd_soc_dapm_disable_pin(codec, "Call Mic");
63 snd_soc_dapm_enable_pin(codec, "Headset Mic");
64 break;
65 }
66
67 snd_soc_dapm_sync(codec);
68}
69
70static int magician_startup(struct snd_pcm_substream *substream)
71{
72 struct snd_soc_pcm_runtime *rtd = substream->private_data;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000073 struct snd_soc_codec *codec = rtd->codec;
Philipp Zabel73772262009-03-19 09:34:46 +010074
75 /* check the jack status at stream startup */
76 magician_ext_control(codec);
77
78 return 0;
79}
80
81/*
82 * Magician uses SSP port for playback.
83 */
84static int magician_playback_hw_params(struct snd_pcm_substream *substream,
85 struct snd_pcm_hw_params *params)
86{
87 struct snd_soc_pcm_runtime *rtd = substream->private_data;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000088 struct snd_soc_dai *codec_dai = rtd->codec_dai;
89 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
Philipp Zabel73772262009-03-19 09:34:46 +010090 unsigned int acps, acds, width, rate;
91 unsigned int div4 = PXA_SSP_CLK_SCDB_4;
92 int ret = 0;
93
94 rate = params_rate(params);
95 width = snd_pcm_format_physical_width(params_format(params));
96
97 /*
98 * rate = SSPSCLK / (2 * width(16 or 32))
99 * SSPSCLK = (ACPS / ACDS) / SSPSCLKDIV(div4 or div1)
100 */
101 switch (params_rate(params)) {
102 case 8000:
103 /* off by a factor of 2: bug in the PXA27x audio clock? */
104 acps = 32842000;
105 switch (width) {
106 case 16:
107 /* 513156 Hz ~= _2_ * 8000 Hz * 32 (+0.23%) */
108 acds = PXA_SSP_CLK_AUDIO_DIV_16;
109 break;
Takashi Iwai2bf27782009-05-15 12:20:52 +0200110 default: /* 32 */
Philipp Zabel73772262009-03-19 09:34:46 +0100111 /* 1026312 Hz ~= _2_ * 8000 Hz * 64 (+0.23%) */
112 acds = PXA_SSP_CLK_AUDIO_DIV_8;
113 }
114 break;
115 case 11025:
116 acps = 5622000;
117 switch (width) {
118 case 16:
119 /* 351375 Hz ~= 11025 Hz * 32 (-0.41%) */
120 acds = PXA_SSP_CLK_AUDIO_DIV_4;
121 break;
Takashi Iwai2bf27782009-05-15 12:20:52 +0200122 default: /* 32 */
Philipp Zabel73772262009-03-19 09:34:46 +0100123 /* 702750 Hz ~= 11025 Hz * 64 (-0.41%) */
124 acds = PXA_SSP_CLK_AUDIO_DIV_2;
125 }
126 break;
127 case 22050:
128 acps = 5622000;
129 switch (width) {
130 case 16:
131 /* 702750 Hz ~= 22050 Hz * 32 (-0.41%) */
132 acds = PXA_SSP_CLK_AUDIO_DIV_2;
133 break;
Takashi Iwai2bf27782009-05-15 12:20:52 +0200134 default: /* 32 */
Philipp Zabel73772262009-03-19 09:34:46 +0100135 /* 1405500 Hz ~= 22050 Hz * 64 (-0.41%) */
136 acds = PXA_SSP_CLK_AUDIO_DIV_1;
137 }
138 break;
139 case 44100:
140 acps = 5622000;
141 switch (width) {
142 case 16:
143 /* 1405500 Hz ~= 44100 Hz * 32 (-0.41%) */
144 acds = PXA_SSP_CLK_AUDIO_DIV_2;
145 break;
Takashi Iwai2bf27782009-05-15 12:20:52 +0200146 default: /* 32 */
Philipp Zabel73772262009-03-19 09:34:46 +0100147 /* 2811000 Hz ~= 44100 Hz * 64 (-0.41%) */
148 acds = PXA_SSP_CLK_AUDIO_DIV_1;
149 }
150 break;
151 case 48000:
152 acps = 12235000;
153 switch (width) {
154 case 16:
155 /* 1529375 Hz ~= 48000 Hz * 32 (-0.44%) */
156 acds = PXA_SSP_CLK_AUDIO_DIV_2;
157 break;
Takashi Iwai2bf27782009-05-15 12:20:52 +0200158 default: /* 32 */
Philipp Zabel73772262009-03-19 09:34:46 +0100159 /* 3058750 Hz ~= 48000 Hz * 64 (-0.44%) */
160 acds = PXA_SSP_CLK_AUDIO_DIV_1;
161 }
162 break;
163 case 96000:
Takashi Iwai2bf27782009-05-15 12:20:52 +0200164 default:
Philipp Zabel73772262009-03-19 09:34:46 +0100165 acps = 12235000;
166 switch (width) {
167 case 16:
168 /* 3058750 Hz ~= 96000 Hz * 32 (-0.44%) */
169 acds = PXA_SSP_CLK_AUDIO_DIV_1;
170 break;
Takashi Iwai2bf27782009-05-15 12:20:52 +0200171 default: /* 32 */
Philipp Zabel73772262009-03-19 09:34:46 +0100172 /* 6117500 Hz ~= 96000 Hz * 64 (-0.44%) */
173 acds = PXA_SSP_CLK_AUDIO_DIV_2;
174 div4 = PXA_SSP_CLK_SCDB_1;
175 break;
176 }
177 break;
178 }
179
180 /* set codec DAI configuration */
181 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB |
182 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
183 if (ret < 0)
184 return ret;
185
186 /* set cpu DAI configuration */
187 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
Philipp Zabel33745fb2009-06-14 12:51:30 +0200188 SND_SOC_DAIFMT_NB_IF | SND_SOC_DAIFMT_CBS_CFS);
Philipp Zabel73772262009-03-19 09:34:46 +0100189 if (ret < 0)
190 return ret;
191
Daniel Ribeiroa5479e32009-06-15 21:44:31 -0300192 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
Philipp Zabel73772262009-03-19 09:34:46 +0100193 if (ret < 0)
194 return ret;
195
196 /* set audio clock as clock source */
197 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
198 SND_SOC_CLOCK_OUT);
199 if (ret < 0)
200 return ret;
201
202 /* set the SSP audio system clock ACDS divider */
203 ret = snd_soc_dai_set_clkdiv(cpu_dai,
204 PXA_SSP_AUDIO_DIV_ACDS, acds);
205 if (ret < 0)
206 return ret;
207
208 /* set the SSP audio system clock SCDB divider4 */
209 ret = snd_soc_dai_set_clkdiv(cpu_dai,
210 PXA_SSP_AUDIO_DIV_SCDB, div4);
211 if (ret < 0)
212 return ret;
213
214 /* set SSP audio pll clock */
Mark Brown85488032009-09-05 18:52:16 +0100215 ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, 0, acps);
Philipp Zabel73772262009-03-19 09:34:46 +0100216 if (ret < 0)
217 return ret;
218
219 return 0;
220}
221
222/*
223 * Magician uses I2S for capture.
224 */
225static int magician_capture_hw_params(struct snd_pcm_substream *substream,
226 struct snd_pcm_hw_params *params)
227{
228 struct snd_soc_pcm_runtime *rtd = substream->private_data;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000229 struct snd_soc_dai *codec_dai = rtd->codec_dai;
230 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
Philipp Zabel73772262009-03-19 09:34:46 +0100231 int ret = 0;
232
233 /* set codec DAI configuration */
234 ret = snd_soc_dai_set_fmt(codec_dai,
235 SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
236 SND_SOC_DAIFMT_CBS_CFS);
237 if (ret < 0)
238 return ret;
239
240 /* set cpu DAI configuration */
241 ret = snd_soc_dai_set_fmt(cpu_dai,
242 SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
243 SND_SOC_DAIFMT_CBS_CFS);
244 if (ret < 0)
245 return ret;
246
247 /* set the I2S system clock as output */
248 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
249 SND_SOC_CLOCK_OUT);
250 if (ret < 0)
251 return ret;
252
253 return 0;
254}
255
256static struct snd_soc_ops magician_capture_ops = {
257 .startup = magician_startup,
258 .hw_params = magician_capture_hw_params,
259};
260
261static struct snd_soc_ops magician_playback_ops = {
262 .startup = magician_startup,
263 .hw_params = magician_playback_hw_params,
264};
265
266static int magician_get_hp(struct snd_kcontrol *kcontrol,
267 struct snd_ctl_elem_value *ucontrol)
268{
269 ucontrol->value.integer.value[0] = magician_hp_switch;
270 return 0;
271}
272
273static int magician_set_hp(struct snd_kcontrol *kcontrol,
274 struct snd_ctl_elem_value *ucontrol)
275{
276 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
277
278 if (magician_hp_switch == ucontrol->value.integer.value[0])
279 return 0;
280
281 magician_hp_switch = ucontrol->value.integer.value[0];
282 magician_ext_control(codec);
283 return 1;
284}
285
286static int magician_get_spk(struct snd_kcontrol *kcontrol,
287 struct snd_ctl_elem_value *ucontrol)
288{
289 ucontrol->value.integer.value[0] = magician_spk_switch;
290 return 0;
291}
292
293static int magician_set_spk(struct snd_kcontrol *kcontrol,
294 struct snd_ctl_elem_value *ucontrol)
295{
296 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
297
298 if (magician_spk_switch == ucontrol->value.integer.value[0])
299 return 0;
300
301 magician_spk_switch = ucontrol->value.integer.value[0];
302 magician_ext_control(codec);
303 return 1;
304}
305
306static int magician_get_input(struct snd_kcontrol *kcontrol,
307 struct snd_ctl_elem_value *ucontrol)
308{
309 ucontrol->value.integer.value[0] = magician_in_sel;
310 return 0;
311}
312
313static int magician_set_input(struct snd_kcontrol *kcontrol,
314 struct snd_ctl_elem_value *ucontrol)
315{
316 if (magician_in_sel == ucontrol->value.integer.value[0])
317 return 0;
318
319 magician_in_sel = ucontrol->value.integer.value[0];
320
321 switch (magician_in_sel) {
322 case MAGICIAN_MIC:
323 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 1);
324 break;
325 case MAGICIAN_MIC_EXT:
326 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 0);
327 }
328
329 return 1;
330}
331
332static int magician_spk_power(struct snd_soc_dapm_widget *w,
333 struct snd_kcontrol *k, int event)
334{
335 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, SND_SOC_DAPM_EVENT_ON(event));
336 return 0;
337}
338
339static int magician_hp_power(struct snd_soc_dapm_widget *w,
340 struct snd_kcontrol *k, int event)
341{
342 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, SND_SOC_DAPM_EVENT_ON(event));
343 return 0;
344}
345
346static int magician_mic_bias(struct snd_soc_dapm_widget *w,
347 struct snd_kcontrol *k, int event)
348{
349 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, SND_SOC_DAPM_EVENT_ON(event));
350 return 0;
351}
352
353/* magician machine dapm widgets */
354static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
355 SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
356 SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
357 SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
358 SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
359};
360
361/* magician machine audio_map */
362static const struct snd_soc_dapm_route audio_map[] = {
363
364 /* Headphone connected to VOUTL, VOUTR */
365 {"Headphone Jack", NULL, "VOUTL"},
366 {"Headphone Jack", NULL, "VOUTR"},
367
368 /* Speaker connected to VOUTL, VOUTR */
369 {"Speaker", NULL, "VOUTL"},
370 {"Speaker", NULL, "VOUTR"},
371
372 /* Mics are connected to VINM */
373 {"VINM", NULL, "Headset Mic"},
374 {"VINM", NULL, "Call Mic"},
375};
376
377static const char *input_select[] = {"Call Mic", "Headset Mic"};
378static const struct soc_enum magician_in_sel_enum =
379 SOC_ENUM_SINGLE_EXT(2, input_select);
380
381static const struct snd_kcontrol_new uda1380_magician_controls[] = {
382 SOC_SINGLE_BOOL_EXT("Headphone Switch",
383 (unsigned long)&magician_hp_switch,
384 magician_get_hp, magician_set_hp),
385 SOC_SINGLE_BOOL_EXT("Speaker Switch",
386 (unsigned long)&magician_spk_switch,
387 magician_get_spk, magician_set_spk),
388 SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
389 magician_get_input, magician_set_input),
390};
391
392/*
393 * Logic for a uda1380 as connected on a HTC Magician
394 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000395static int magician_uda1380_init(struct snd_soc_pcm_runtime *rtd)
Philipp Zabel73772262009-03-19 09:34:46 +0100396{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000397 struct snd_soc_codec *codec = rtd->codec;
Philipp Zabel73772262009-03-19 09:34:46 +0100398 int err;
399
400 /* NC codec pins */
401 snd_soc_dapm_nc_pin(codec, "VOUTLHP");
402 snd_soc_dapm_nc_pin(codec, "VOUTRHP");
403
404 /* FIXME: is anything connected here? */
405 snd_soc_dapm_nc_pin(codec, "VINL");
406 snd_soc_dapm_nc_pin(codec, "VINR");
407
408 /* Add magician specific controls */
409 err = snd_soc_add_controls(codec, uda1380_magician_controls,
410 ARRAY_SIZE(uda1380_magician_controls));
411 if (err < 0)
412 return err;
413
414 /* Add magician specific widgets */
415 snd_soc_dapm_new_controls(codec, uda1380_dapm_widgets,
416 ARRAY_SIZE(uda1380_dapm_widgets));
417
418 /* Set up magician specific audio path interconnects */
419 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
420
421 snd_soc_dapm_sync(codec);
422 return 0;
423}
424
425/* magician digital audio interface glue - connects codec <--> CPU */
426static struct snd_soc_dai_link magician_dai[] = {
427{
428 .name = "uda1380",
429 .stream_name = "UDA1380 Playback",
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000430 .cpu_dai_name = "pxa-ssp-dai.0",
431 .codec_dai_name = "uda1380-hifi-playback",
432 .platform_name = "pxa-pcm-audio",
433 .codec_name = "uda1380-codec.0-0018",
Philipp Zabel73772262009-03-19 09:34:46 +0100434 .init = magician_uda1380_init,
435 .ops = &magician_playback_ops,
436},
437{
438 .name = "uda1380",
439 .stream_name = "UDA1380 Capture",
Ian Larteya2a00862010-08-20 17:18:43 +0100440 .cpu_dai_name = "pxa2xx-i2s",
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000441 .codec_dai_name = "uda1380-hifi-capture",
442 .platform_name = "pxa-pcm-audio",
443 .codec_name = "uda1380-codec.0-0018",
Philipp Zabel73772262009-03-19 09:34:46 +0100444 .ops = &magician_capture_ops,
445}
446};
447
448/* magician audio machine driver */
449static struct snd_soc_card snd_soc_card_magician = {
450 .name = "Magician",
451 .dai_link = magician_dai,
452 .num_links = ARRAY_SIZE(magician_dai),
Philipp Zabel73772262009-03-19 09:34:46 +0100453
Philipp Zabel73772262009-03-19 09:34:46 +0100454};
455
456static struct platform_device *magician_snd_device;
457
Philipp Zabel1abd9182009-06-15 22:18:23 +0200458/*
459 * FIXME: move into magician board file once merged into the pxa tree
460 */
461static struct uda1380_platform_data uda1380_info = {
462 .gpio_power = EGPIO_MAGICIAN_CODEC_POWER,
463 .gpio_reset = EGPIO_MAGICIAN_CODEC_RESET,
464 .dac_clk = UDA1380_DAC_CLK_WSPLL,
465};
466
467static struct i2c_board_info i2c_board_info[] = {
468 {
469 I2C_BOARD_INFO("uda1380", 0x18),
470 .platform_data = &uda1380_info,
471 },
472};
473
Philipp Zabel73772262009-03-19 09:34:46 +0100474static int __init magician_init(void)
475{
476 int ret;
Philipp Zabel1abd9182009-06-15 22:18:23 +0200477 struct i2c_adapter *adapter;
478 struct i2c_client *client;
Philipp Zabel73772262009-03-19 09:34:46 +0100479
480 if (!machine_is_magician())
481 return -ENODEV;
482
Philipp Zabel1abd9182009-06-15 22:18:23 +0200483 adapter = i2c_get_adapter(0);
484 if (!adapter)
485 return -ENODEV;
486 client = i2c_new_device(adapter, i2c_board_info);
487 i2c_put_adapter(adapter);
488 if (!client)
489 return -ENODEV;
490
Philipp Zabel73772262009-03-19 09:34:46 +0100491 ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
492 if (ret)
493 goto err_request_spk;
494 ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER");
495 if (ret)
496 goto err_request_ep;
497 ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER");
498 if (ret)
499 goto err_request_mic;
500 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0");
501 if (ret)
502 goto err_request_in_sel0;
503 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1");
504 if (ret)
505 goto err_request_in_sel1;
506
Philipp Zabel73772262009-03-19 09:34:46 +0100507 gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);
508
Philipp Zabel73772262009-03-19 09:34:46 +0100509 magician_snd_device = platform_device_alloc("soc-audio", -1);
510 if (!magician_snd_device) {
511 ret = -ENOMEM;
512 goto err_pdev;
513 }
514
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000515 platform_set_drvdata(magician_snd_device, &snd_soc_card_magician);
Philipp Zabel73772262009-03-19 09:34:46 +0100516 ret = platform_device_add(magician_snd_device);
517 if (ret) {
518 platform_device_put(magician_snd_device);
519 goto err_pdev;
520 }
521
522 return 0;
523
524err_pdev:
525 gpio_free(EGPIO_MAGICIAN_IN_SEL1);
526err_request_in_sel1:
527 gpio_free(EGPIO_MAGICIAN_IN_SEL0);
528err_request_in_sel0:
529 gpio_free(EGPIO_MAGICIAN_MIC_POWER);
530err_request_mic:
531 gpio_free(EGPIO_MAGICIAN_EP_POWER);
532err_request_ep:
533 gpio_free(EGPIO_MAGICIAN_SPK_POWER);
534err_request_spk:
Philipp Zabel73772262009-03-19 09:34:46 +0100535 return ret;
536}
537
538static void __exit magician_exit(void)
539{
540 platform_device_unregister(magician_snd_device);
541
542 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
543 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
544 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0);
Philipp Zabel73772262009-03-19 09:34:46 +0100545
546 gpio_free(EGPIO_MAGICIAN_IN_SEL1);
547 gpio_free(EGPIO_MAGICIAN_IN_SEL0);
548 gpio_free(EGPIO_MAGICIAN_MIC_POWER);
549 gpio_free(EGPIO_MAGICIAN_EP_POWER);
550 gpio_free(EGPIO_MAGICIAN_SPK_POWER);
Philipp Zabel73772262009-03-19 09:34:46 +0100551}
552
553module_init(magician_init);
554module_exit(magician_exit);
555
556MODULE_AUTHOR("Philipp Zabel");
557MODULE_DESCRIPTION("ALSA SoC Magician");
558MODULE_LICENSE("GPL");